[FFmpeg-user] ffmpeg encoding

David Favor david at davidfavor.com
Mon Oct 13 20:58:12 CEST 2014


Maziar Mehrabi wrote:
> Hi,
> 
> Could you be more specific? Why it didn't work? Can you provide us with
> some error log, or the output of ffmpeg?
> 
> Thank you,
> Maziar
> 
> 
> --
> Hälsningar,
> Maziar Mehrabi
> 
> On Wed, Sep 24, 2014 at 7:43 PM, Maria De Los Angeles Quintero <
> maquintero at planetife.us> wrote:
> 
>> Hi!!
>>
>> I need to encode an specific mp4, i have been trying with the ffmpeg, but
>> i couldnt make it, if you could help me with these would be great.
>> The encoding requirements are these:
>>
>> Mpeg4-h.264
>>
>> Main profile Level 3.0
>>
>>
>> Set CABAC for Main profile
>>
>> Constant bit rate encoding
>>
>> 1.5-2.0 Mb´s  resolution
>>
>> Closed GOP must be set
>>
>> GOP size shall be equal to 1/2 second, with the following exceptions:
>>
>>       -Utilizing GOP size less than 1/2 second is acceptable and shall be
>> used for       scene change detection.
>>
>> Every I-frame must be in IDR- IDR Frecuency shall be set to 1
>>
>> Streaming format is required e.g SPS and other secuence headers shall be
>> repeated throughout the stream to facilitate fast decoder synchronization
>> during random acces.
>>
>> B-Frames shall be used when main profile is chosen
>>
>> No referenced B-frames
>>
>> Number of B-Frames shall be set to 2 or 3
>>
>> Number of referenced frames shall be set to 2
>>
>> Encode without wight prediction
>>
>> Number of slices shall be set to 1,2 or 4
>>
>> Deblocking filter shall be enable
>>
>> 720x480 NTSC
>>
>> Thanks you so much!!!

Provide your full command + likely someone can help.


More information about the ffmpeg-user mailing list